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Full text of "The manufacture and properties of iron and steel"

vessels, this being cheaper than ordinary ocean transportation owing to the special vessels used. The blast furnaces at South Chicago are on the water front, the vessels being unloaded directly into the" stockyard.
The subsidiary fuel comes from different sources. The gas coals of Central Illinois contain as high as 45 per cent, of volatile matter and are used for'heating furnaces, but cannot be used in open-hearth work on account of the high sulphur.  For this reason the melting furnaces use the gas coal'of Pittsburgh, West Virginia and the Big Muddy field of Southerri Illinois. Oil has been used in the past, the neighboring refineries, working on'Ohio and Indiana 'oils, supplying residuum t a price which has been attractive.